Powder Keg [Urza's Destiny] Goblin Wizard Set: Eternal Masters Type: Instant

Set: Eternal Masters Type: Instant Rarity: Rare Cost: {B} Search your library for a card

Then if a 2: graveyard has twenty or more cards in it

Set: World Championships 2007 Type: Lightning Rarity: Rare

except it's an artifact in addition to its other types

Whenever one or more Dragons you control attack

Powder Keg [Urza's Destiny] Goblin Wizard Set: Eternal Masters Type: InstantSet: Urza's Destiny Type: Artifact Rarity: Rare Cost: {2} At the beginning of your upkeep, you may put a fuse counter on Powder Keg. {T}, Sacrifice Powder Keg: Destroy each artifact and creature with mana value equal to the number of fuse counters on Powder Keg.